Sunshade device

Abstract

The invention generally relates to a sunshade apparatus such as an umbrella or sunshade that includes a canopy with extendable portions that may be positioned in a manner so as to maximize shade. In exemplary embodiments, the sunshade device includes a canopy, and a rib assembly connected to a shaft, the rib assembly including a first joint coupled to a first assembly arm, the first joint connecting a first arm extension to the rib assembly at a first angle with respect to a surface, and a second joint coupled to a second assembly arm, the second joint connecting a second arm extension to the rib assembly at a second angle with respect to the surface.

What is claimed is: 
     
       1. A sunshade device, comprising:
 a canopy expanding a perimeter around a central shaft; 
 a rib assembly coupled to the shaft and the canopy; and 
 a first and a second extension, each including:
 extension arms pivotally coupled to assembly arms of the rib assembly at terminal ends of the extension arms, and 
 a canopy panel situated between the extension arms, wherein the first and second extensions are configured to: 
 pivot about the perimeter of the canopy, and 
 securely rest at a predetermined angle, wherein:
 the first extension includes a first angled joint defined by a first angled surface that forms a positive angle with respect to a plane and is configured to receive a first extension arm in a manner so that the first extension arm rests on the first angled surface securely positioned at the positive angle and elevated above the perimeter of the canopy; and 
 the second extension includes a second angled joint defined by a second angled surface that forms a negative angle with respect to the plane and is configured to receive a second extension arm in a manner so that the second extension arm rests on the second angled surface securely positioned at the negative angle and lowered below the perimeter of the canopy. 
 
 
 
     
     
       2. The sunshade device of  claim 1 , wherein the first and second angled joints are integral with an assembly arm of the rib assembly. 
     
     
       3. The sunshade device of  claim 1 , wherein the first and second angled joints are separately coupled with an assembly arm of the rib assembly. 
     
     
       4. The sunshade device of  claim 1 , wherein the first and second extensions comprise of extensions situated at opposite sides on the perimeter of the canopy. 
     
     
       5. The sunshade device of  claim 1 , wherein the canopy comprises a polygonal shape and the first and second extensions comprise a trapezoidal shape. 
     
     
       6. The sunshade device of  claim 1 , wherein the canopy comprises a polygonal shape and the first and second extensions comprise a triangular shape. 
     
     
       7. The sunshade device of  claim 1 , wherein the canopy and the first and second extensions comprise a substantially rectangular shape. 
     
     
       8. A sunshade device, comprising:
 a canopy expanding a perimeter around a shaft; and 
 a rib assembly coupled to the shaft and the canopy, the rib assembly including:
 a first joint component coupled to a first assembly arm, the first joint component connecting a first extension arm to the first assembly arm of the rib assembly at a first angle with respect to a surface, wherein the first joint component comprises:
 a first angled support member having a first angled surface that forms a positive angle with respect to a plane; and 
 a first coupling component situated at a terminal end of the first angled surface and adapted to receive the first extension arm at the positive angle so that the first extension arm securely rests on the first angled surface of the first joint component and is elevated above the perimeter of the canopy; and 
 
 a second joint component coupled to a second assembly arm, the second joint component connecting a second extension arm to the second assembly arm of the rib assembly at a second angle with respect to the surface, wherein the second joint component comprises:
 a second angled support member having a second angled surface that forms a negative angle with respect to the plane; and 
 a second coupling component situated at a terminal end of the second angled surface and adapted to receive the second extension arm at the negative angle so that the second extension arm securely rests on the second angled surface of the second joint component and is lowered below the perimeter of the canopy. 
 
 
 
     
     
       9. The sunshade device of  claim 8 , wherein the first angled support member is integral with the first assembly arm of the rib assembly. 
     
     
       10. The sunshade device of  claim 8 , wherein the second angled support member is integral with the second assembly arm of the rib assembly.